Home / 7,407.64-11,105.96-4,485.28

Finding the Fourth Proportional to 7,407.64, 11,105.96 and 4,485.28

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Solution

The fourth proportional to 7,407.64, 11,105.96 and 4,485.28 is: 6,724.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.64 : 11,105.96 = 4,485.28 : x
  2. Step 2: Convert to fraction form
    7,407.64/11,105.96 = 4,485.28/x
  3. Step 3: Cross multiply
    7,407.64x = 11,105.96 × 4,485.28
  4. Step 4: Simplify right side
    7,407.64x = 49,813,340.27
  5. Step 5: Solve for x
    x = 49,813,340.27/7,407.64
  6. Step 6: Final answer
    x = 6,724.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.